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The structure of even-even neutron-rich Ru, Mo, Zr and Sr nuclei in the $A\approx 100$ mass region is studied within the interacting boson model (IBM) with microscopic input from the self-consistent mean-field approximation based on the…

核理论 · 物理学 2016-10-21 K. Nomura , R. Rodríguez-Guzmán , L. M. Robledo

Quantum phase transitions between competing ground-state shapes of atomic nuclei with an odd number of protons or neutrons are investigated in a microscopic framework based on nuclear energy density functional theory and the…

核理论 · 物理学 2017-02-17 K. Nomura , T. Nikšić , D. Vretenar

The systematics of one-quasiparticle configurations in neutron-rich Sr, Zr, and Mo odd isotopes is studied within the Hartree-Fock-Bogoliubov plus Equal Filling Approximation method preserving both axial and time reversal symmetries.…

核理论 · 物理学 2011-01-25 R. Rodriguez-Guzman , P. Sarriguren , L. M. Robledo

Deformed and spherical even-even nuclei are studied using a finite range simple effective interaction within the Hartree-Fock-Bogoliubov mean field approach. Different parameter sets of the interaction, corresponding to different…

核理论 · 物理学 2017-04-13 B. Behera , X. Viñas , T. R. Routray , L. M. Robledo , M. Centelles , S. P. Pattnaik

We investigate the emergence and evolution of shape coexistence in the neutron-deficient Lead isotopes within the interacting boson model (IBM) plus configuration mixing with microscopic input based on the Gogny energy density functional…

核理论 · 物理学 2012-12-03 K. Nomura , R. Rodriguez-Guzman , L. M. Robledo , N. Shimizu

The structure of the $\Delta J = 1$ doublet bands in $^{128}Cs$ is investigated within the framework of the Interacting Vector Boson Fermion Model (IVBFM). A new, purely collective interpretation of these bands is given on the basis of the…

核理论 · 物理学 2011-03-15 H. G. Ganev , S. Brant

The disorder and interaction effects on Bogoliubov-Fermi surfaces with preserved inversion symmetry are studied for a low-energy effective model coupled to bosonic degrees of freedom. It is shown that the non-ideal Bogoliubov quasiparticles…

超导电性 · 物理学 2021-09-29 Tatsuya Miki , Shun-Ta Tamura , Shoma Iimura , Shintaro Hoshino

The interacting boson model with configuration mixing, with parameters derived from the self-consistent mean-field calculation employing the microscopic Gogny energy density functional, is applied to the systematic analysis of the low-lying…

核理论 · 物理学 2014-02-04 K. Nomura , R. Rodriguez-Guzman , L. M. Robledo

The constrained Hartree-Fock-Bogoliubov method is used with the Gogny interaction D1S to calculate potential energy surfaces of fissioning nuclei ${}^{226}$Th and ${}^{256,258,260}$Fm up to very large deformations. The constraints employed…

核理论 · 物理学 2008-11-26 N. Dubray , H. Goutte , J. -P. Delaroche

The evolution and coexistence of the nuclear shapes as well as the corresponding low-lying collective states and electromagnetic transition rates are investigated along the Krypton isotopic chain within the framework of the interacting…

核理论 · 物理学 2017-09-13 K. Nomura , R. Rodríguez-Guzmán , Y. M. Humadi , L. M. Robledo , H. Abusara

Quantum phase transitions between competing equilibrium shapes of nuclei with an odd number of nucleons are explored using a microscopic framework of nuclear energy density functionals and a particle-boson core coupling model. The boson…

核理论 · 物理学 2017-07-12 K. Nomura , T. Nikšić , D. Vretenar

The nuclear structure of even-even and odd lead isotopes (178-236 Pb) is investigated within the Hartree-Fock-Bogoliubov theory. Calculations are performed for a wide range of neutron numbers, starting from the proton-rich side up to the…

核理论 · 物理学 2018-01-10 Younes El Bassem , Mustapha Oulne

Predictions of the spectroscopic properties of low-lying states are critical for nuclear structure studies, but are problematic for nuclei with an odd nucleon due to the interplay of the unpaired single particle with nuclear collective…

核理论 · 物理学 2017-12-06 S. Quan , W. P. Liu , Z. P. Li , M. S. Smith

Spectroscopic calculations are carried out, for the description of the shape/phase transition in Pt nuclei in terms of the Interacting Boson Model (IBM) Hamiltonian derived from (constrained) Hartree-Fock-Bogoliubov (HFB) calculations with…

核理论 · 物理学 2011-03-02 K. Nomura , T. Otsuka , R. Rodriguez-Guzman , L. M. Robledo , P. Sarriguren

Constrained mean-field calculations, based on the Gogny-D1M energy density functional, have been carried out to describe fission in the isotopes $^{250-260}$No. The even-even isotopes have been considered within the standard…

核理论 · 物理学 2016-12-02 R. Rodriguez-Guzman , L. M. Robledo

A systematic study of low energy nuclear structure at normal deformation is carried out using the Hartree-Fock-Bogoliubov theory extended by the Generator Coordinate Method and mapped onto a 5-dimensional collective quadrupole Hamiltonian.…

核理论 · 物理学 2010-04-06 J. P. Delaroche , M. Girod , J. Libert , H. Goutte , S. Hilaire , S. Peru , N. Pillet , G. F. Bertsch

The constrained Hartree-Fock-Bogoliubov approximation, based on the recent parametrization D1M$^{*}$ of the Gogny energy density functional, is used to describe fission in 435 superheavy nuclei. The Gogny-D1M$^{*}$ parametrization is…

核理论 · 物理学 2020-04-15 R. Rodríguez-Guzmán , Y. M. Humadi , L. M. Robledo

Low-energy structure of even-even $^{108-116}$Cd isotopes is analyzed using a collective model that is based on the nuclear density functional theory. Spectroscopic properties are computed by solving the triaxial quadrupole collective…

核理论 · 物理学 2022-12-19 K. Nomura , K. E. Karakatsanis

The structure of low-energy collective states in proton-deficient N=28 isotones is analyzed using structure models based on the relativistic energy density functional DD-PC1. The relativistic Hartree-Bogoliubov model for triaxial nuclei is…

核理论 · 物理学 2012-09-28 Z. P. Li , J. M. Yao , D. Vretenar , T. Niksic , H. Chen , J. Meng

We compute the $\beta$-decay $ft$-values within the frameworks of the energy density functional (EDF) and the interacting boson model (IBM). Based on the constrained mean-field calculation with the Gogny-D1M EDF, the IBM Hamiltonian for an…

核理论 · 物理学 2020-05-06 K. Nomura , R. Rodríguez-Guzmán , L. M. Robledo